/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.kie.kogito.addons.quarkus.k8s.config;

import java.net.URI;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class KubeDiscoveryConfigCache {

    private static final Logger logger = LoggerFactory.getLogger(KubeDiscoveryConfigCache.class);

    private final Map<String, String> cache = new ConcurrentHashMap<>();

    private final KubeDiscoveryConfigCacheUpdater updater;

    KubeDiscoveryConfigCache(KubeDiscoveryConfigCacheUpdater updater) {
        this.updater = updater;
    }

    Optional<String> get(String configName, String configValue) {
        try {
            String cachedValue = cache.computeIfAbsent(configName, k -> updater.update(configValue).map(URI::toString).orElse(null));
            return Optional.ofNullable(cachedValue);
        } catch (RuntimeException e) {
            logger.error("Service Discovery has failed on property [{}={}]", configName, configValue, e);
        }
        return Optional.ofNullable(configValue);
    }
}
